1. An SCP that is unaffected by cognitohazards, memetic effects and so on.
2. A WWII Era German Super-tank prototype with the interior of a car from that particular era.
3. A joke SCP. An over-sized Lego block that breaks apart into regular Legos, which proceed to become "Invisible" so to speak, and scatter themselves across the room/area.

I'm still thinking of other ideas, but if any of these seem interesting please do let me know. Also, if any of these have been done already, please inform me. I wish to create a unique and brand new article. Thank you.

1. Specify what it is. And why would this interest anyone?
2. And…? What does it even look like from the inside, through the car windows?
3. It's not funny.

You need to formulate a backstory or some kind of narrative behind an SCP, rather than thinking up some weird object. What emotion are you trying I get me to feel from any of these? Take your time to make a story behind one idea, rather than busting out several anomalous objects.

1. This isn't really that good of a concept when making an article
2. I don't see the function to the Nazis making a tank that looks like a car from the inside,
the reverse would work better, and might make a decent article
3. no comment